Aggrandize, v. t. [imp. & p. p. Aggrandized; p. pr. & vb. n. Aggrandizing.]
Etymology: [F. agrandir; à (L. ad) + grandir to increase, L. grandire, fr. grandis great. See Grand, and cf. Finish.]
1. To make great; to enlarge; to increase; as, to aggrandize our conceptions, authority, distress.
2. To make great or greater in power, rank, honor, or wealth; -- applied to persons, countries, etc. His scheme for aggrandizing his son. Prescott.
3. To make appear great or greater; to exalt. Lamb.
Syn. -- To augment; exalt; promote; advance.
1 other Webster entry under this spelling
Aggrandize, v. i.
To increase or become great. [Obs.] Follies, continued till old age, do aggrandize. J. Hall.
Shades of meaning
Fernald lists aggrandize only as an antonym, under abase.
He lists it without comment; the entries above explain its neighbors.